Release Unselect hidden tracks (MCP and/or TCP) v1.0 (ReaTeam#156)

* Release Unselect hidden tracks (MCP and/or TCP) v1.0

* sort MCP and TCP in alphabetical order

Tracks Properties/cfillion_Unselect hidden tracks.lua

@@ -0,0 +1,49 @@
+-- @description Unselect hidden tracks (MCP and/or TCP)
+-- @author cfillion
+-- @version 1.0
+-- @metapackage
+-- @provides
+--   [main] . > cfillion_Unselect tracks hidden in MCP.lua
+--   [main] . > cfillion_Unselect tracks hidden in TCP.lua
+--   [main] . > cfillion_Unselect tracks hidden in MCP and TCP.lua
+-- @link cfillion.ca https://cfillion.ca
+-- @donation Donate via PayPal https://paypal.me/cfillion
+-- @about
+--   This script provides three actions to unselect hidden selected tracks:
+--
+--   - cfillion_Unselect tracks hidden in MCP.lua
+--   - cfillion_Unselect tracks hidden in TCP.lua
+--   - cfillion_Unselect tracks hidden in MCP and TCP.lua
+
+function enumSelectedTracksReverse()
+  local i = reaper.CountSelectedTracks(0)
+  return function()
+    i = i - 1
+    return reaper.GetSelectedTrack(0, i)
+  end
+end
+
+local TCP = 1<<9
+local MCP = 1<<10
+
+local modes = {
+  ['TCP'        ] = TCP,
+  ['MCP'        ] = MCP,
+  ['MCP and TCP'] = TCP|MCP,
+}
+
+local scriptName = ({reaper.get_action_context()})[2]:match("([^/\\_]+)%.lua$")
+local mode = modes[scriptName:match("in (.+)$")]
+assert(mode, 'Invalid filename, cannot deduce what to do.')
+
+reaper.Undo_BeginBlock()
+
+for track in enumSelectedTracksReverse() do
+  local _, state = reaper.GetTrackState(track)
+
+  if state & mode == mode then
+    reaper.SetTrackSelected(track, false)
+  end
+end
+
+reaper.Undo_EndBlock(scriptName, 1)